| THE Pilates School UK LLP | | 2025 |
| THE Prosper Collective Limited | Administrative & support | 2025 |
| THE Purposeful Leadership Company Ltd | Professional & scientific | 2020 |
| THE Remarkable Studio Limited | Professional & scientific | 2000 |
| THE Residency Property Management Co Ltd | Real estate | 2026 |
| THE Scrub HAT Shop Ltd | Wholesale & retail | 2019 |
| THE Spot Food Group Limited | Hospitality | 2025 |
| THE Star Hotel (Kingussie) Limited | Hospitality | 2023 |
| THE Tasty WOK Limited | Hospitality | 2020 |
| THE Velvet Collection Limited | Information & communication | 2026 |
| THE Wheatsheaf (Grayswood) Limited | Hospitality | 2022 |
| THE Word Chest Ltd | Professional & scientific | 2014 |
| Thepositiveimpactcompany Limited | Information & communication | 2024 |
| Theproject Company Ltd | Professional & scientific | 2011 |
| Thirteen Rostrevor Road Limited | Real estate | 1994 |
| Thirty Nine Ramsgate Road Limited | Real estate | 2007 |
| Thorlands Residents Company Limited | Hospitality | 1979 |
| Those PUB Guys Ltd | Wholesale & retail | 2025 |
| Three Gates Lane Ventures Limited | Professional & scientific | 2018 |
| Threenine Consulting Limited | Information & communication | 2005 |
| Thrive Partnership Limited | Professional & scientific | 2025 |
| Ticketing Consultancy .COM Ltd | Professional & scientific | 2011 |
| Tiger Lily BUS Company Limited | Hospitality | 2016 |
| Tiger Lily Holdings Limited | Hospitality | 2003 |
| Tillingbourne Construction Ltd | Real estate | 2004 |
| Timber Time Framing Ltd | Manufacturing | 2022 |
| Timberstone Estates Ltd | Real estate | 2026 |
| Tippit Limited | Extraterritorial | 2020 |
| Tipple Brands Ltd | Wholesale & retail | 2014 |
| TJS Homes Ltd | Real estate | 2022 |
| Tkei (Copthorne) Limited | Construction | 2016 |
| Tkei (Crawley) Limited | Construction | 2017 |
| Tkei (Scaynes) Limited | Construction | 2010 |
| TLS Action Limited | Arts & recreation | 2010 |
| Toast ME UP Ltd | Hospitality | 2022 |
| Tomlins Properties Ltd | Real estate | 2018 |
| Tomlinson Medical Consulting Limited | Health & social care | 2011 |
| Top-Tier Horticulture Ltd | Administrative & support | 2025 |
| Topwire Electrical Ltd | Construction | 2017 |
| Torquest Ltd | Manufacturing | 2014 |
| Toss World Limited | Manufacturing | 2026 |
| Town & Country Heating Services Ltd | Construction | 2016 |
| Townplanning.App Ltd | Professional & scientific | 2026 |
| Tpsg Limited | Construction | 2014 |
| Tracklink UK Limited | Wholesale & retail | 2002 |
| Transition Global Ltd | Professional & scientific | 2021 |
| Traxion Biotech Ltd | Professional & scientific | 2025 |
| Treetop Media Ltd | Information & communication | 2017 |
| Trendells Place Management Company Limited | Extraterritorial | 2014 |
| Trident Coaching & Events Limited | Education | 2025 |
| Trillion BOW Ltd | Information & communication | 2024 |
| Troika Design & Build Ltd | Construction | 2021 |
| Trust in Yourself Ltd | Health & social care | 2022 |
| Tsiang Limited | Professional & scientific | 2013 |
| TTF Contractors Ltd | Construction | 2025 |
| Ttms Software UK Ltd | Information & communication | 2015 |
| TU Casa Properties Developments Ltd | Real estate | 2025 |
| TU Casa Properties Holdings Ltd | Financial services | 2025 |
| Tulsi Property Management Ltd | Real estate | 2022 |
| Tweedmont Ltd | Professional & scientific | 2024 |
| Twenty Two Clifton Gardens Limited | Households | 1986 |
| Ugcers Ltd | Information & communication | 2023 |
| Uhnlkey Ltd | Wholesale & retail | 2025 |
| UK Leisure Hire Limited | Administrative & support | 2019 |
| Umodzi Investments Limited | Wholesale & retail | 2020 |
| Unify Design Ltd | Professional & scientific | 2018 |
| Uniq Physique Limited | Arts & recreation | 2012 |
| Unitatis Flight Safety Ltd | Education | 2019 |
| Uniwheel Limited | Manufacturing | 2015 |
| UNO Safety Limited | Wholesale & retail | 2012 |
| Van Walt Limited | Professional & scientific | 1982 |
| Vanderohe Curio Ltd | Wholesale & retail | 2016 |
| Vann Road Limited | Real estate | 2011 |
| Vantage Children’S Services Limited | Health & social care | 2023 |
| Vantage Group Limited | Hospitality | 2024 |
| Vaper+ Haslemere Ltd | Wholesale & retail | 2024 |
| Vault Hill Limited | Information & communication | 2021 |
| Vaztech Communications Ltd | Information & communication | 2019 |
| VDB Consultants Ltd | Professional & scientific | 2024 |
| Velopont Advisory Ltd | Professional & scientific | 2026 |
| Venteecity Ltd | Wholesale & retail | 2025 |
| Venture Insurance Services Limited | Financial services | 1997 |
| Venturi Condensers Limited | Other services | 2018 |
| Venturi Optics Ltd | Health & social care | 2013 |
| Venza Ltd | Wholesale & retail | 2026 |
| Verdley Land Limited | Administrative & support | 2016 |
| Vespucci Adventures Limited | Wholesale & retail | 2017 |
| Veteran Locksmiths U.K Ltd | Administrative & support | 2022 |
| Vfainc Limited | Financial services | 2025 |
| Victoria Page Communications Limited | Professional & scientific | 2017 |
| Viercron Ltd | Extraterritorial | 2012 |
| Viridis Finance Limited | Financial services | 2022 |
| Vista GC Holdings Ltd | Financial services | 2025 |
| Vista Home Developers Ltd | Construction | 2024 |
| Visual Capital Limited | Information & communication | 2012 |
| Vlmr Services Ltd | Professional & scientific | 2014 |
| Voxbud Limited | Wholesale & retail | 2009 |
| Vpra Limited | Households | 1995 |
| Vrceti Ltd | Information & communication | 2021 |
| Vundla Justice 0483 Limited | Transport & logistics | 2014 |